S2 Pro API Pricing
Short answer
S2 Pro costs $15/M UTF-8 bytes. Last verified 2026-06-21 from fish.audio. Confidence: Verified.
Fish Audio S2 Pro is its highest-quality TTS model with multi-speaker generation and natural-language expression control.
TTS pricing
$15.00 /1M UTF-8 bytes
Price detail$15/M UTF-8 bytes
Capabilities
Speech / billing specMulti-speaker; expression control; cloning
Modalitytext → speech
ChannelFish Audio API
ProviderFish Audio
Best for
TTSVoice cloningMultilingual
Fish bills UTF-8 bytes, not Unicode characters. Chinese text generally consumes more bytes than English, so do not compare the headline directly with per-character APIs.
Last checked Verified